The grinding is definitely louder on the downstroke rather than a constant sound like yours. I'm going to try another cassette and see if that makes a difference.
Really hoping I don't have to go down the warranty replacement route as they seem to be out of stock everywhere...
Both bought in June, and were fine last time I was using.
I've probably done an extra 500–700km on the chain but outside and on a different cassette (also new from June). Do you think that could be causing any issues?
The noise stops when coasting – video
The grinding is definitely louder on the downstroke rather than a constant sound like yours. I'm going to try another cassette and see if that makes a difference.
Really hoping I don't have to go down the warranty replacement route as they seem to be out of stock everywhere...